package com.mc.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;


/** 
* @author yf 
* @根据被注入对象名称从spring容器中获取对象实例。
* @date 创建时间：2017年12月1日 下午2:35:04 
* @version 1.0   
*/
@Component
public class SpringUtil implements ApplicationContextAware{

    private static ApplicationContext applicationContext;  
    
    @Override
    public void setApplicationContext(ApplicationContext context) throws BeansException {
        SpringUtil.applicationContext = context;  
        
    }

    //获取applicationContext  
    public static ApplicationContext getApplicationContext() {  
        return applicationContext;  
    }
    
    //通过name获取 Bean.
    public static Object getBean(String name){
        return applicationContext.getBean(name);  
    }
    
    //通过class获取Bean.  
    public static <T> T getBean(Class<T> clazz){  
        return getApplicationContext().getBean(clazz);  
    }
    
    //通过name,以及Clazz返回指定的Bean  
    public static <T> T getBean(String name,Class<T> clazz){  
        return getApplicationContext().getBean(name, clazz);  
    }  
}
